
.course-learn {
  width: 100%;
  height: 100%;
  background-color: #000;
  .course-learn-player{
    width: 100%;
    height: calc(100% - 46px);
    position: relative;
    &.ding-course-learn-player{
      height: 100%;
    }
    .lesson-loading{
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, .3);
      display: flex;
      align-items: center;
      justify-content: center;
    }
  }
}
